Snow-road machine



(No Model.)

J. TURNBULL & E. W. PARWELL.

SNOW-ROAD MACHINE.

Patented Aug. 26, 1890.

@JW/kwamen 'UNiTnDYA STATES PATENT Ormond.

JOSEPH TURNBULL AND EDVIN IV. FARVVELL, OF MINNEAPOLIS, MINNESOTA.

SNOW-ROAD MACHINE.

SPECIFICATION forming part of Letters Patent No. 434,963, dated August26,189@

Application led February 28, 1890. Serial No. 842,175. (No model.)

To aZZ whom, L' may concern.'

Be it known that we, JOSEPH TURNBULL and EDWIN W. FARWELL, citizens Yofthe Unit-ed States, residing at Minneapolis, in the county ofHennepinand State of Minnesota, have jointly invented certain new and usefulImprovements in Snow-Road Machines, of which the following is aspecification.

Our invention relates to apparatus for sprinkling roads to cause smoothroad-beds to be produced by freezing. Great difficulty is experiencedamong the lumbermen in providing good roads for hauling logs from thedifferentplaceswheretrees arefelled toacommon depository. As is wellknown, the cutting of logs in northern regions is done mostly in thewinter, for thereason that it is difficult to transport them except uponsled's, and to use these to advantage smooth road-beds, either of snowor ice, are necessary. And as it frequently happens that there is toolittle or too much snow to form the desired roadways, it is foundnecessary to make roads by sprinkling a course and allowing a subsequentfreezing to produce the smooth surfaces required. Furthermore, it isfound that the roadways so formed are smoother and better for thepurpose of hauling logs than when the road-bed is formed merely bybeaten snow. Ordinary sprinklers are not adapted to the purpose, becausethe cold is often sufficient to freeze the water in the apparatus andthus end itsusefulness. In addition to the formation of a smooth trackfor sleds it is frequently found necessary to remove deep snow from theroadbed and from its sides to facilitate transportation.

It is the object of ourinvention to produce an apparatus adapted to warmwater sufiiciently to prevent it from freezing while the apparatus isbeing operated and also to produce steam when d esired, suitableappliances being provided whereby the road-bed may be sprinkled with thewarm water, and when occasion demands jets of steam may be thrown into.the road and to its sides for melting away snow.

Our improvements are illustrated in the accompanying drawings, in whichmFigure lis a plan view of the apparatus; Fig. 2, a side elevatiompartlyin section; Fig.

3, a rear elevation; Fig. .4, a top view of the funnel for conductingwater into the boiler; and Fig. 5 is a detail of one of thesprinklingnozzles.

In said drawings l designates a boiler, having a semi-cylindrical topand vertical sides 2. A passage-way 3, for the products of combustion,is formed by vertical sides et, separated from but connected at thebottom 'with the outer sides 2 of the boiler, and the s'des 4. areconnected at the top by a crown-sheet 5. A continuous water-chamber isthus formed at the sides and over the combustion-chamber. A suitablegrate 6 near the rear end is pro-l vided, and also a door 7 for closingthe firechamber. At the forward end is connected a smoke-stack 8, havinga hinge 9, by means of which its upper portion can be swung rearward.The boiler is supported upon bobsleds 10, or runners of any desiredcharacter. Short pipes l1 are connected to the boiler near its middle,and valves l2 are provided for regulating or cutting od the flow ofwater. From the pipes 11, which may have T-shaped connections 13, thereextend downward and rearward pipes 14., which may be provided at theirlower extremities with any suitable character 0f nozzles or sprinklersfor directing the water downward or laterally.

At the top of the boiler is connected a pipe 15, controlled by a valve16, for using steam when desired. This pipe has connections 17,extending to the pipes 14, so that steam can be carried to the lower endof the latter pipes.

In using steam for removing snow or other purposes the lower ends of thepipe 14. may be connected by a transverse pipe 18, having suitableperforations for ejecting steam in the directions desired. The pipe 1Sand the nozzles 19 may be used interchangeably by coupling them to thepipes 14.- by any of the usual forms of couplings.

The boiler is supplied with water through the funnel 20 in the top.

Devices are shown by means of which a barrel of water can be hoisted andemptied into the funnel. These devices consist of a post 2l, havinglateral braces 22, and provided with a pulley 23 at its top, throughwhich a rope or chain may be run for hoisting abarrel to the funnel. Aman-hole 24.,

IOO

with which the funnel connects, is closed by a removable plate'25 andsecured by any suitable clamping devices 26.

In use Water can be easily kept from freezing While the apparatus is inoperation, and in case of the obstruction of the road by snow steam canbe readily utilized for removing so much of it as may be an obstruction.

Practical use has demonstrated that the apparatus is highly successfuland useful for the purpose for Which it is intended.

Having described our invention, what We claim, and desire to secure byLetters Patent, 1s-

In an apparatus of the character set forth, a portable horizontal boilerhaving a tine at its base extending from end to end, and

. JOSEPH TURNBULL.

EDWIN W. FARWELL. Witnesses:

H. J. LONGLEY, J. T. CHRIsoHILLEs, P. H. GUNCKEL.

